CN217589650U - Novel connector signal shielding device - Google Patents
Novel connector signal shielding device Download PDFInfo
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- CN217589650U CN217589650U CN202221280837.2U CN202221280837U CN217589650U CN 217589650 U CN217589650 U CN 217589650U CN 202221280837 U CN202221280837 U CN 202221280837U CN 217589650 U CN217589650 U CN 217589650U
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- signal shielding
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Abstract
The utility model discloses a novel connector signal shielding device relates to radiofrequency signal shielding technical field, including the signal shielding shell, set up the first recess that is used for holding the connector on the signal shielding shell, the connector welds on the PCB board, signal shielding shell lower extreme with PCB board fixed connection is still including setting up shielding structure between signal shielding shell and the connector, shielding structure is located in the first recess. The problem that a gap exists between an existing connector and a signal shielding shell to cause signal leakage is solved.
Description
Technical Field
The utility model relates to a radio frequency signal shields technical field, specifically relates to a novel connector signal shielding device.
Background
In the radio frequency microwave industry, connectors are mostly welded on a PCB (printed circuit board) as signal transmission joints, and then a shell is arranged on the outer cover of a welding point to prevent signal leakage, however, due to different shapes of some connectors, for example, the surface of the connector contains a circular arc surface, the opening of the shell is not tightly attached to the connector, and some gaps exist, so that signals at a welding pad of the connector leak through the gaps, and the module index is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel connector signal shielding device to there is the gap between solving current connector and the signal shielding shell, leads to the problem of signal leakage.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a novel connector signal shielding device, including signal shielding shell, set up the first recess that is used for holding the connector on the signal shielding shell, the connector welds on the PCB board, signal shielding shell lower extreme with PCB board fixed connection is still including setting up shielding structure between signal shielding shell and the connector, shielding structure is located in the first recess.
The utility model discloses increase shielding structure between signal shielding shell and connector, with the gap stifled that produces between connector and the signal shielding shell, separate the pad of connector with the external world, avoid signal leakage.
Furthermore, the shielding structure comprises a signal shielding block, and a second groove for embedding the signal shielding block is formed in the first groove.
The signal shielding block is attached to the connector to prevent signal leakage, the second groove is used for being embedded into the signal shielding block, the signal shielding block is convenient to install and is limited, the signal shielding block is prevented from being misplaced or falling, and a new gap is generated.
Furthermore, a third groove attached to the upper surface of the connector is formed in the lower end of the signal shielding block, and the lower end of the signal shielding block is attached to the surface of the PCB.
The connector is generally welded on the surface of the PCB, the inner side of the signal shielding block provided with the third groove is attached to the surface of the connector, the top of the signal shielding block is attached to the surface of the PCB, the connector is wrapped, and the signal shielding effect is enhanced.
Furthermore, the signal shielding block is made of conductive rubber.
The conductive rubber is prepared by uniformly filling fine conductive particles (such as silver plating on glass, silver plating on aluminum, silver and the like) into silicon rubber according to a certain proportion, so that the conductive rubber has good water vapor tightness, conductivity and electromagnetic shielding property, can be used for conducting a connector and a circuit on a PCB (printed circuit board), and simultaneously avoids electromagnetic signal leakage.
Further, the width of the first groove is larger than that of the third groove.
A certain distance is reserved between the connector and the inner wall of the first groove, so that the signal shielding block with a certain thickness can be conveniently installed, the signal shielding block can be properly extruded during installation, the connector can be more attached to the surface of the connector, and the shielding effect is ensured.
Further, the second recess is located above the connector socket.
After the second recess embedding signal shielding piece, can the deposition in the gap in signal shielding piece the place ahead, set up the second recess in connector socket top, can reduce the degree of depth in signal shielding piece the place ahead gap, avoid the gap that first recess the place ahead was left too dark, the deposition is too much.
Further, the width of the first groove is smaller than that of the second groove. The structure ensures that the second groove is a groove which is formed downwards on the side wall of the first groove instead of a bulge, so that the signal shielding block can be conveniently embedded and limited.
The utility model provides a one or more technical scheme has following technological effect or advantage at least:
(1) The device increases the sealing performance around the connector by adding the shielding structure between the connector and the shell, thereby avoiding signal leakage of the device;
(2) This device adopts conductive rubber as shielding structure, and signal shielding is effectual, and can laminate the connector of various shapes, increases the leakproofness, reduces signal leakage, still has high electric conductivity simultaneously, makes the circuit on connector and the PCB board switch on.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention;
FIG. 1 is a cross-sectional view of the structure of the device of the present invention;
fig. 2 is a schematic diagram of the structure of the signal shielding case of the present invention;
FIG. 3 is a schematic diagram of the structure of the signal shielding block of the present invention;
the signal shielding module comprises a signal shielding shell 1, a connector 2, a first groove 3, a PCB 4, a signal shielding block 5, a second groove 6 and a third groove 7.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the features of the embodiments and examples of the present invention may be combined with each other without conflict between the embodiments and examples.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and the scope of the present invention is not limited by the specific embodiments disclosed below.
The embodiment provides a novel connector signal shielding device, as shown in fig. 1 and 2, including signal shielding shell 1, set up the first recess 3 that is used for holding connector 2 on the signal shielding shell 1, connector 2 welds on PCB board 4, signal shielding shell 1 lower extreme with PCB board 4 fixed connection is still including setting up the shielding structure between signal shielding shell 1 and the connector 2, shielding structure is located in first recess 3.
In the prior art, the lower part of the connector 2 is a plane, a boss is arranged below the socket of the connector 2, a notch is formed in the PCB 4, the boss is embedded into the notch for positioning, and then welding is carried out.
The shielding structure is arranged according to the size of a gap between the connector 2 and the signal shielding shell 1, so that the purposes of blocking the gap and preventing signal leakage are achieved.
In a more preferred embodiment, as shown in fig. 3, the shielding structure comprises a signal shielding block 5, and a second groove 6 for embedding the signal shielding block 5 is formed in the first groove 3.
The signal shielding block 5 is a "U" shaped plate, and the thickness thereof may be any thickness smaller than the length of the first groove 3, and the same as the length of the second groove 6, so that the signal shielding block 5 can be inserted into and clamped in the second groove 6.
In a more preferred embodiment, the lower end of the signal shielding block 5 is provided with a third groove 7 attached to the upper surface of the connector 2, and the lower end of the signal shielding block 5 is attached to the surface of the PCB 4.
The shape of the third groove 7 is the same as the shape of the upper surface of the connector 2, so that the signal shielding block 5 is attached to the connector 2 through the third groove 7, and signal leakage is prevented.
In a more preferred embodiment, the signal shielding block 5 is made of conductive rubber.
When the conductive particles in the conductive rubber are filled to a certain volume fraction, the conductive particles are contacted with each other to form an electronic continuous state, when an external electromagnetic field reaches the outside of the conductive rubber, strong electromagnetic waves strike the free electrons of the conductive particles, the free electrons move freely, the free electrons form an electromagnetic field opposite to the external electromagnetic field in the moving process, the internal and external electromagnetic fields are mutually offset, the effect of weakening electromagnetic interference waves is achieved, signal leakage is also prevented, and the conductive rubber has conductivity due to the electronic continuous state, so that the connector 2 can be conducted with a circuit on a PCB. The electromagnetic wave that specific kind and the proportion of packing need shield according to the device is confirmed, and the electrically conductive rubber texture is soft simultaneously, can be inseparable through extrusion and 2 surface laminating of connector, eliminates the gap that produce, prevents signal leakage, and consequently, third recess 7 can be suitable little, makes between signal shielding piece 5 and the connector 2 through interference fit, is convenient for through extrusion laminating connector, makes the gap sealed.
In a more preferred embodiment, the width of the first groove 3 is greater than the width of the third groove 7. Leave the signal shielding piece 5 of certain thickness between messenger's connector 2 and the first recess inner wall, carry out appropriate amount extrusion to signal shielding piece 5 when being convenient for install, guarantee the shielding effect.
In a more preferred embodiment, the width of the first groove 3 is smaller than the width of the second groove 6. Facilitating the embedding of the signal shielding block 5 and limiting the signal shielding block 5.
In a more preferred embodiment, the second recess 6 is located above the socket of the connector 2. The second groove 6 is positioned at the opening of the device, so that the phenomenon that the gap left in front of the first groove 3 is too deep is avoided, and dust accumulation is prevented.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. The utility model provides a novel connector signal shielding device, includes signal shielding shell (1), offer first recess (3) that are used for holding connector (2) on signal shielding shell (1), connector (2) weld on PCB board (4), signal shielding shell (1) lower extreme with PCB board (4) fixed connection, its characterized in that still is in including setting up shielding structure between signal shielding shell (1) and connector (2), shielding structure is located in first recess (3).
2. The novel connector signal shielding device according to claim 1, wherein the shielding structure comprises a signal shielding block (5), and a second groove (6) for embedding the signal shielding block (5) is formed in the first groove (3).
3. The novel connector signal shielding device according to claim 2, wherein a third groove (7) attached to the upper surface of the connector (2) is formed at the lower end of the signal shielding block (5), and the lower end of the signal shielding block (5) is attached to the surface of the PCB board (4).
4. A novel connector signal shielding device according to claim 3, characterized in that the signal shielding block (5) is made of conductive rubber.
5. A novel connector signal shielding device according to claim 3, characterized in that the width of the first recess (3) is larger than the width of the third recess (7).
6. A novel connector signal shielding device according to claim 2, characterized in that said second recess (6) is located above the socket of said connector (2).
7. A novel connector signal shielding device according to claim 6, characterized in that the width of the first recess (3) is smaller than the width of the second recess (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221280837.2U CN217589650U (en) | 2022-05-25 | 2022-05-25 | Novel connector signal shielding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221280837.2U CN217589650U (en) | 2022-05-25 | 2022-05-25 | Novel connector signal shielding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217589650U true CN217589650U (en) | 2022-10-14 |
Family
ID=83554613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221280837.2U Active CN217589650U (en) | 2022-05-25 | 2022-05-25 | Novel connector signal shielding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217589650U (en) |
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2022
- 2022-05-25 CN CN202221280837.2U patent/CN217589650U/en active Active
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